Slag-pocket.



SLAG POCKET.

.wucmom FILED www. ma. K

Mmmm Dec. i?, 19M.

Simms-SHEET 1.

W. M. WHALEN.

SLAG POCKET.

APPLICATION mED1uNE4.191a.

/NVEN l`0A. Mad

A To /eNE YS ICE. l

winnaar in. WHALEN, er nain, PENNSYLVANIA.

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message.

To all 'whom it may concern a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same, reference being had to v the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification. A

LIy invention relates to slag-pockets for open-hearth furnaces, and consists in providing such slag-pockets with removable slag receiving receptacles which are .so placed in the slag-pockets that the sidesand bottom of said receptacles will be materially cooled, so that the slag will harden on the inner surfaces thereof. lThese and other features of my invention will appear hereinafter, and are illustrated in theaccompanying drawings in which:

Figure l, is a transverse vertical section of portions of an open-hearth furnace and slag-pocket, 'showing my invention installed therein:

Fig. 2, isa vertical section thereof on the line mlooking in the direction of the l arrows in Fig. 1.

Fig. 3, is a horizontal section 'o'f the sameon the line g/-fj looking inthe direction of the arrows in Fig. 1.

In these drawings A: indicates the melting tank of an open-hearth-furnace which is inclosed in the usual setting-walls Af. B, B

' .indicate the side walls of the usual slagpocket, which in my invention are provided with under-cut recesses BB2 at each side of the lower portion of the slag-pocket.

0n the bottom of the slag-pocket I place longitudinal piers b, upon which I place metal plates C, C. having a space between the adjacent ends thereof as shown in Fig-2. Upon these plates (1,10 I construct receptacles D of refractory 'brick or other suitable material, the side and fend walls of which extend upwardly from said plates C to a point slightly above the under-cut recesses B-B, the side walls of said receptacle being provided with 'ribs d which engage the fixed walls at each side of the slagpocket B to support the side walls off said receptacle. These ribs d extend vertically along the intermediate portion of the side longitudinal air passages along the upper portion B and lower portion B2 of the i under-cut recesses.

There are also 'air vpassages betweenthe piers b-b under the plates C C (see Fig. 1) which communicate with the-spaces -E and E at the ends ofthe receptacles D.4 F, F, indicate air ducts which lead from the upper longitudinal air passages B B 'to the stack (not shown) of the furnace, by means of which cold air is drawn into lthe passages B2 B2, and the passages between the `pierslb under the/receptacles, and caused to travel specification of Leners Patent. Pit-mmm He, 17, .1918; Application led `Tune 4, 1918. .Serial No. 238,145. A

walls of the receptacles D 'so as to leave tov along the sides of the receptacles D between the ribs d for the purpose of walls of saidreceptacles.

The lower passages B2; and the passages between ,the piers are open through the cooling the upwardly-sov as to engagethe inner ends of the receptacles D, so that a crane-tackle can `be hooked thereto for the purpose kofex- .front wall G as shown in Fig. 2, so that tracting the receptacles when it is desired to 'empty them.` When the receptacles' arereinoved they will ordinarily be broken up, as the slag hardens on the walls thereof, and it is therefore necessary to replace them' with new ones; but with my inventionthis can be done without much loss .of time, as the slag does not have to be cut olf of the xed walls of the pocket, and it is therefore not necessary to repair said fixed walls.

I am aware that others have devised removable slag receptacles, between which and the fixed walls they haveplaced filling material, but I am not aware of any constructien of removable slag-pocket being providedwith air cooling passages thereabout.

Therefore havingshown and described my invention so as to enable others to utilize the saine, what I claim as'new and desire to secure by Letters=Patent is:-

1. In a slag-pocket, fixed walls, spacing l ribs extending inwardly therefrom, a removable slag receptacle having its outer surface in contact with said spacing ribs, and

means to cause air to circulate between said spacing ribs, substantially as set forth.

2. In a slag-pocket, fixed Walls, a removable receptacle therein having lthe intermediate portions of its Walls in spaced relation to said Vfired Walls, and means to draw cool air into the lower portion of the space around said removable receptacle, and heated air out of the upper portion of said space, substantially as set forth.

3. In a slag-pocket, fixed side and end Walls having under-cut recesses in the lower portions of their inner surfaces, longitudinal piers on the bottom of said pocket, a removable receptacle on sald piers, the side and end Walls of which extend upwardly slightly' above said under-cut recesses, means to draw air out of the upper portions of said undercut recesses, and means to admit air under and at the side of said removable receptacles, substantially as set forth.

4. In a sla,gpocl et, fixed side and end Walls, piers on the. bottom of said pocket, a removable receptacle therein supported on said piers, the upper edges of the Walls of Which contact with saidv Xed Walls, and the intermediate portion of the side Walls there-A- of being inspaced relation r-to said ixed Lasaaas Walls, vertical ribs on said receptacle side Walls to engage said fixed Walls so as to support the side Walls of said 'receptacles7 means to draw air from the space between the Walls of said receptacles 'and said fixed Walls, and means to admit air thereinto, substantially as set forthA i 5. In a slag-pocket, fixed side Walls, piers i on the bottom thereof, a metal plate supported on said piers, a slag receptacle on said plate, the upper edges of the Vside Walls of which engage said fixed side Walls of the Y pocket, and the intermediate portion of the sidewalls of the receptacle being in spaced relation thereto, and means to cause a cir' culationA of air along the Wallsof said receptacle, substantially as set forth.'

,6. In. a slag-pocket, fixed Walls, spacing ribs on the inner surface thereof, a removable slag receptacle in said slag-pocket the 'I sides of Whichengage and are supported Aby said spacing ribs, spacing ribs supporting said slag-receptacle out 0f contact With the bottom ofthe slag-pocket, andimeans eX- tending under said receptacle and engaging' the rear thereof for removing-it from the slag-pocket, substantially as set forth.

In testimony whereof I a'iX my signature.

WILLIAM M. WI-IALEN; 

